Ndl Industries W8004 Copper Union 7/8 Inch

Product Description

The NDL INDUSTRIES W8004 is a 7/8-inch copper union fitting used to join two sections of copper tubing in a way that allows future disconnection without cutting the line. Unions like this one are a standard component in plumbing, HVAC, and refrigeration installations where serviceability is a priority. The fitting allows a technician to break a connection cleanly at a later date, making it a practical choice for equipment hookups, service valves, and branch connections that may need to be serviced over the life of the system. Licensed plumbers and HVAC-R technicians routinely install this type of fitting.

This union is suited for residential and light commercial copper tubing applications. It is appropriate for use in water supply lines, hydronic heating systems, and refrigerant line sets where a 7/8-inch OD tube connection is required. The fitting ships in a box quantity of 25 units, making it a practical stocking item for service trucks and supply rooms handling routine copper pipework.

Key Features

• 7/8-inch connection size for standard copper tubing
• Union design allows disconnection without cutting the line
• Copper construction provides corrosion resistance and durability in wet and refrigerant environments
• Box quantity of 25 units supports stocking for repeat-use applications
• Compatible with standard sweat (solder) joining methods

Compatibility

Designed as an OEM-style replacement and standard-stock union fitting for 7/8-inch copper tubing installations in plumbing, HVAC, and refrigeration systems.

Installation Notes

Installation is performed by a licensed plumber or HVAC-R technician following applicable local plumbing codes and IFGC or IPC guidelines where relevant. Shut off the water supply or isolate the refrigerant circuit and recover any refrigerant before beginning work on the line. The union nut and seat should be properly aligned before tightening to prevent cross-threading or joint failure. Solder connections must be made with the appropriate flux and filler material for the fluid service involved.

Technical Specifications

• Basic Fitting Type: Union
• Connection Size: 7/8 inches
• Material: Copper
• Box Quantity: 25

Standard Information

• Brand: NDL INDUSTRIES
• Manufacturer Part Number: W8004